diff --git a/gems.locked b/gems.locked
index 7736fe5..18774d0 100644
--- a/gems.locked
+++ b/gems.locked
@@ -55,7 +55,7 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     parslet (2.0.0)
-    rack (2.2.3)
+    rack (2.2.6.3)
     rack-protection (2.0.8.1)
       rack
     rack-test (1.1.0)